Re: Clip map texture

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Don Hatch (hatch++at++hell.engr.sgi.com)
Sat, 26 Jul 1997 19:05:58 -0700

On Jul 25, 6:30pm, Carol Pawlowski wrote:
> Subject: Clip map texture
> Hi,
> Does any one know how to generate the .ct files for clipmap textures.
> I have been trying to convert a .tif file with out much success. I have
> read the documentation supplied by Performer and I am blowing up on the
> rsets program?

Are you running the rsets program on the .tif file?
That won't work; the file needs to be in SGI .rgb format.
You can use the "imgcopy" program (in imgtools.sw.tools)
to convert from .tif to .rgb first.

Once you have the tiles as .rgb files (using rsets or however else you
do it) you can convert to raw tile files using the to888 or to5551 program.

Note that the .rgb format is scanline-oriented
rather than tile oriented, so its performance can be
pretty lousy on huge files.
The only reason these programs this format is that we
haven't got around to writing anything better.

Don

-- 
Don Hatch  hatch++at++sgi.com  (415) 933-5150  Silicon Graphics, Inc.
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